- Joined
- Aug 14, 2012
- Messages
- 5
- Motherboard
- DG43GT
- CPU
- Q8800
- Graphics
- 9500 GT Nvidia
- Mac
- Classic Mac
- Mobile Phone
I think with Dual binaries the Combo updates would take around 60-70% size of The Installer.Ah... I thought you just didn't want to download it over and over...
The full Catalina installer is ~8GB.
The full Big Sur installer is ~12GB. (approx 50% larger than Catalina installer)
The Catalina 10.15.7 Combo Update is ~5GB.
I don't know how large a Big Sur 11.1 Combo Update would be if it existed but assuming it's ~50% larger than the Catalina update, it would be ~7.5GB. So you're just saving about 4.5GB. If you have more than two systems to update, it would still be faster to just use the full installer because downloading 12GB once is < 7.5GB twice.
View attachment 501486
Apple now pack prebuilt cache instead of individual binaries/files, so even a minor change in a single file has to be replaced by a entirely new cache in the target system. You can check the size of the dyld shared cache by opening /System/Library/dyld/ (9.73GB for 11.0)
I do not know which way apple is heading.